Interplex for Constant Envelope in LEO Satellite Communication System
In modern LEO satellite communication systems,numerous singnals have to be located in a same frequency band because of limited spectrum resources.Thus,a bandwidth-efficient modulation,which has constant envelope characteristics and can alleviate signal distortions when using saturated power amplifiers is necessary to combine several signals to share the frequency resource.This paper presents the analytic interplex modulation expression in LEO satellite spread spectrum communication systems,and obtains the relationship of modulation efficiency,error rate and power ratio.Lastly,the appropriate choice of power radio is obtained in the case of three signals or four signals multiplexing.The work of this paper is an important guideline for constant envelope combined methodologies in LEO satellite spread spectrum communication systems.
Constant envelope Interplex Modulation efficiency error rate Power ratio
CHEN Yi-jun WU Kang JIANG Quan-jiang LIU Hui-jie LIANG Xu-wen
Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai, C Shanghai Enginerring Center for Microsatellites Chinese Academy of Sciences Shanghai, China
国际会议
三亚
英文
1660-1666
2013-06-22（万方平台首次上网日期，不代表论文的发表时间）